Vinurinn fer inn í húsið.

The friend goes into the house.

Breakdown of Vinurinn fer inn í húsið.

• húsið: the house
• vinurinn: the friend
• fara: to go
• inn í: into

Questions & Answers about Vinurinn fer inn í húsið.

Why is the noun vinurinn written with -inn at the end?

In Icelandic, definiteness is marked by a suffix on the noun rather than a separate article.

• Vinur means “a friend.”
• Adding -inn (the masculine singular definite ending) gives vinurinn, “the friend.”

Why does hús take -ið as in húsið?

Hús is a neuter noun. The definite singular ending for neuter nouns in both nominative and accusative is -ið.

• hús = “a house” (indefinite)
• húsið = “the house” (definite)

What is the role of the two words inn and í in fer inn í húsið, and why are both needed?

They work together to express movement into an enclosed space:

• inn is an adverb or directional particle meaning “in(wards).”
• í is the preposition “into.”
  Combined, inn í means “into” with emphasis on going inside.
  If you wanted to say “is inside,” you’d use inni í (stative) instead of inn í (dynamic):
  “Vinurinn er inni í húsið.” (“The friend is inside the house.”)

Why is in the accusative case here?